Improvement in grate-backs



UNITED VSTATES PATENT OFFICE.-

JOSEPH D. OGLE, OF RIOHMONDALE, OHIO.

IMPROVEMENT IN GRATETBACKS.

Specification forming part of Letters Patent No. 182,033, dated September 12, 1876; application filed August 5, 12576.

To all whom 'it may concern:

Beit known that I, JOSEPH D. OGLE, of Richmondale, Ross county, State of Ohio, have invented an Improved Grate-Back, of which the followingis a specication:

My invention consists in constructinga hollow grate-back of cast-iron, so partitioned that one or more Lipper rooms may be heated from the air which passes through the same, there .being suitable inlet and outlet orifices.

The accompanying drawings, are made a part of my specification, in which like letters designate like parts.

Figure 1 is a perspective view ofthe grateback. Fig. 2 is a transverse vertical section ofthe same.

The hollow grate-back Icast in two parts, of

vsuitable size for ordinary sittin g-room grates.

l ward, filling the space above, and thereby dividing the back into two apartments. At O,

Fig. 1, is an oritice in the right end of the hack. To this orifice is attached suitable pipe, `-to convey the heated air to an upper room, when, by extending the central rib to form two apartments, a similar oriice is provided for the opposite end, vthe pipe connected therewith extending to another room. The back plate, which is bolted onto the front, presents a plane surface, with the exception of the projections D D', which serve only t0 direct the current of air forward into the upper and lower chambers. E is the inlet for the air which is supplied from the. outside ot' the building. The upper projection ot' the back extends forward toaid in forming the throat for the iiue, and the lower projection extends forward beneath the grate-bars.

The operation may be described thus: The

air enters from without the building through the inlet E, passing around the projection D upward between the walls, and carried forward, by the projection D, into the upper chamber, and thence out through the side orifices into upper rooms. The air in its passage through the back becomes heated, and being conveyed through suitable pipes to upper rooms. Thus these rooms become warmed in a convenient and economical manner. What I claim as my invention is The hollow grate-back provided with ribs B B, projections D D', inlet E, and ortice C, constructed substantially as set forth, and for the purpose of heating an upper room.

JOSEPH D. OGLE. Witnesses:

R. J. TwEED', JAcoB A. MoLER. 

